Brush



FIG. 1 is a bottom, front, right perspective view of a brush showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The even-length broken lines showing the remainder of the brush illustrate environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for a brush, as shown and described. 